diff --git a/sys/dev/iwn/if_iwn.c b/sys/dev/iwn/if_iwn.c
index e1d6520e2908..6cdde77a26bd 100644
--- a/sys/dev/iwn/if_iwn.c
+++ b/sys/dev/iwn/if_iwn.c
@@ -1253,7 +1253,7 @@ iwn_dma_contig_free(struct iwn_dma_info *dma)
 			bus_dmamap_sync(dma->tag, dma->map,
 			    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
 			bus_dmamap_unload(dma->tag, dma->map);
-			bus_dmamem_free(dma->tag, &dma->vaddr, dma->map);
+			bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
 			dma->vaddr = NULL;
 		}
 		bus_dmamap_destroy(dma->tag, dma->map);